Home / 2,946.54-4,066.02-1,687.61

Finding the Fourth Proportional to 2,946.54, 4,066.02 and 1,687.61

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Solution

The fourth proportional to 2,946.54, 4,066.02 and 1,687.61 is: 2,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.54 : 4,066.02 = 1,687.61 : x
  2. Step 2: Convert to fraction form
    2,946.54/4,066.02 = 1,687.61/x
  3. Step 3: Cross multiply
    2,946.54x = 4,066.02 × 1,687.61
  4. Step 4: Simplify right side
    2,946.54x = 6,861,835.68
  5. Step 5: Solve for x
    x = 6,861,835.68/2,946.54
  6. Step 6: Final answer
    x = 2,328.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.